Banks and payment services are in a constant fight to detect account fraud, employing sophisticated ways to detect abnormal activities. One of those ways is "fingerprinting" a Web browser, or analyzing its relatively unique software stamp.

Frequent fliers get all the perks--and all the attention from cyber criminals, apparently. United Airlines, American Airlines, and Park-n-Fly have all reported breaches in the past few days, pointing to an emerging trend of attacks targeted specifically at travelers.

There have been so many major data breaches over the past year or two that it's hardly even news anymore when millions of customer accounts are compromised. We've become jaded, and just expect that attackers will find a way to penetrate our networks and steal our data. The reality, however, is that there is one simple thing companies--and individuals--can do that will prevent the vast majority of data breaches: two-factor authentication.

The U.S. National Security Agency has had a secret foothold for years in North Korea's networks and saw signs of the Sony Pictures Entertainment attack but only in retrospect grasped its reach and depth, The New York Times reported Sunday.

High-profile French media websites went offline for a few hours Friday morning, prompting frenzied speculation about "unprecedented" cyberattacks -- but the hosting company behind the sites soon dismissed talk of a massive distributed denial-of-service attack.